The basics of translation.

نویسنده

  • Huda Y Zoghbi
چکیده

www.sciencemag.org SCIENCE VOL 339 18 JANUARY 2013 247 COVER Map of highest surface temperature in the north polar region of Mercury superimposed on topography measured by the MESSENGER spacecraft. Red areas surrounding the pole (center) reach temperatures above 450 K. Blue and purple areas inside polar impact craters never exceed 100 K and are suffi ciently cold to harbor water ice and frozen organic compounds. The largest ice-containing crater near the center of the image is ~112 km in diameter and 2.7 km deep. See pages 282, 292, 296, and 300. For the story behind the cover, go to http://scim.ag/cov6117.

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عنوان ژورنال:
  • Science

دوره 339 6117  شماره 

صفحات  -

تاریخ انتشار 2013